shackleton



Jan. 3; i928. 1,654,997

\ G. W. SHACKLETON WE'FT STOP MECHANISM FOR LOOMS Filed March 28, 1927 4 4 Sheets-Sheet 1 w Ludlnk Jan. 3, 1928.

G. W. SHACKLETON EFT STOP MECHANISM FOR LOOMS 4 Sheets-Sheet 2 Filed March 28, 1927 [1v VE/VTOR MMMMV 5,14 6% W177.

Jan. 3, 1928. G. w. SHACKLETON I WEFT STOP MECHANISM FOR LOOMS Filed March 28, 1927 4 Sheets-Sheet 4 Arr ys arranged to occupy their normal advanced positions as shown by Figs. -1 and 5, by the actions of the open spiral springs b [i (shown in broken lines Flgs. 3 and 5) which are respectively embedded in them, taking againstflthe bracket 12.

Above thesebars b Z) is a double acting catch 13 which is pivoted at 18 upon a lever 14:, in such a manner that its outer catch part 13 may rest upon the'bars Z) and b and engagewith them as is herein aft-er explained."

- The lever 1 1- has the connecting rod pivoted'to it so that this rod 0 may reach down to actuate the retaining catch (Z to bring about the actions fully described in the prior Patent 1,238,947.

The normal position of the lever-1e is secured by its outer endld bearing against the railC as is shown by Figs. 1, 5, S and 8. During the ordinary weaving operations of the loom the dagger ais carried by the ,sl ayboard B in path in which the supplementary bunter bar 6 is situated. Consequently at 'its first advancing movement it will move bar b forward to its position shown by Figs. 8, 9, 1'0 and 11, and by doing so it will have moved the upwardly extend ingprojection on the bar Z), from beneath the catch part 18? on the catch 13. w en the loom is in motion, the rod 15 (Whichacts in conjunction with the starting rod or handle 16 carried by the lever 1 7)v is inthe position shown by Fig. 12 and when theb ar b has been thus moved, the catch 13 may descend so that its part 13* willengage with and retain the bar Z) in the position shown by Figs. 8, 9, and 1 1, and at the same time be positioned in the patlroftl1e projection Z2 on the bar VVhenZthe 'looin is at iiest or out of action the hoop 18 fiiied upon the said rod 15 engages the upper end of th'e'lever 19 and movies the lower arm 19 of said lever to cause same to engage with the flange 13 .on'the catch13 to raise said catch out of cbntact with both of the bars Z) and Z). When the rod 15is moved to start the loom to earry out the weaving operations, the rod l occupies position where the hoop 18 fixed upon it, is out of contact with the lever 19 while the hoop 18 (also fixed upon said rod 15) treatises to move said lever 19, so that its arm 19 will fail to support the catch 13 as is shown by Fig. 12.

ram the foregoing description it will be observedthat whenever the loom is started, the-two hunters b and b will both be occupying their normal advanced positions shown by Figs. 1, 5, 6 and 7 into which positions they will have been brought by the action of their springs 6 b which had previously been released by the sliding of the rod 15 (when the loom was stopped or had its motion arrested) causing the lever 19 to raise the catch 13.

lVith the two hunters?) and b in their forward positions as stated, should there be no weft to arrest the descent of the weft fork or detector, the dagger a will he slid into its position opposite the primary hunter 5 and by the advancing movement of the slayboard B it will strike said hunter 7) and cause it to slid-e under the part 13 of: the catch 13 which at this time will be held above and clear of same, so that its project ing part (3 will not engage with the part 13, hence this forward movement of the hunter [2 and its return movement will be idle or non-eiiective.

On the other hand when the two punters b and I) occupy their forward positions and there is a shot ot-we present beneath the weft fork or detector, then the dagger a will be adjusted by such weft in a position opposite the hunter 7) so that by its advanc' ing movement with the slayboard, it will strike or engage said hunter Z) and will carry same with it to cause the projection Z3 to go beyond the part 13 of the catch 13 hence this will fall and will be engaged between the projection Z) and the edge of the projection 5 on the hunter 7).

In both of said cases the crank shaft of the loom will have revolved through one revolution (or for one pick) without acting upon any part which, under the conditions and for the reasons stated, could start the ii iechanism into action for effecting the disengagement of the picking, the reversing of the pattern surface mechanism and other devices hereinbefore referred to. Consequently thedisadvantages heretofore met with are avoided,'and the'loom continues in motion for ei'l'ectively performing its weaving functions with the two hunters adjusted in their Qesp'ectivc positions shown by Figs. 8, 9, 10 and 11. The said positions are maintained said hunters until another broken or failing shot off weit occurs. This failure will result in the descent of the weft fork or detector which will move the dagger a into position opposite the hunter 7) and the engagement of the projection 5 thereon with the catch 13 will more lever 14 and its connect-ing rod 0, to place the whole mechanism into action to repeat the functions liereinbe'fore explained.

Such being the nature and object of my said invention what I claim is 1. In at 100111 of the character described. the combination with control mechanism and a weft detector including a n'iember movable with the lay, of a hunter comprising two sliding bars, one of said bars being positioned in the path of the weft detector memher on the lay when the weft is in proper condition and the other of said bars being in the path of movement of said detector mem her when the weft is broken, springs for moving both said bars in a direction opposite that in which they are moved by said weft detector member, a catch adapted to connect said bars when the first said bar has been moved by the weft detector member in opposition to its coacting spring, and connections between said catch and the control mechanism, for the purpose described.

2, In a loom of the character described, the combination with control mechanism and a weft detector including a member movable with the lay, of a hunter comprising two sliding bars, one of said bars being positioned in the path of the weft detector member on the lay when the weft is in proper condition and the other of said bars being in the path of movement of said detector member when the weft is broken, a catch adapted to retain the first said bar in the position to which it is shifted by the weft detector member and to connect the two bars, a lever supporting said catch, and a rod connecting said lever with the control mechanism, for the purpose described.

3. In a loom of the character described, the combination with control mechanism and a weft detector including a member movable with the lay, of a hunter comprising two sliding bars, one of said bars being positioned in the path of the weft detector memher on the lay when the weft is in proper condition and the other of said bars being in the path of movement of said detector memher when the weft is broken, each of said bars being provided with an upward projection, springs for moving both said bars in a direction opposite that in which they are moved by said weft detector member, a catch adapted to be positioned between said projections on said bars and connect them when the first said bar is shifted by the weft detector member, and means to transmit movement of said connected bars to the control mechanism, for the purpose described.

l. In a loom of the character described, the combination with control mechanism and a weft detector including a member movable with the lay, of a hunter comprising two sliding bars, one of Said bars being positioned in the path of the weft detector member on the lay when the weft is in proper condition and the other of said bars being in the path of movement of said detector memher when the weft is broken, each said bars being provided with an upward projection, springs for moving both said bars in a diroot-ion opposite that in which they are moved by said weft detector member, a catch adapted to be positioned between said projections on said bars when the first said bar is shifted by the weft detector member, means for retaining said catch in elevated position above both said bars when the loom is idle, and means connecting said catch and control mechanism, for the purpose described.

GEORGE WILSON SHAOKLETON. 

